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I.253.1 : Call completion supplementary services : Call waiting (CW) supplementary service

Recommendation I.253.1

In force components
Number
Title Status
I.253.1 (07/90)
 
Call completion supplementary services : Call waiting (CW) supplementary service   In force
 
 
Superseded and Withdrawn components
Number
Title Status
I.253.1 (11/88)
 
Call completion supplementary services : Call waiting   Superseded

 

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Updated : 2011.03.14